Meguiar s Flagship Premium Cleaner/Wax is a unique marine/RV formula that safely removes light to moderate defects offers a brilliant high gloss and long-lasting protection all in one step. Formulated to quickly remove light to moderate below surface defects like oxidation water spots minor scratches swirls haze and more. Powerful ingredients provide long-lasting superior protection against salt air corrosion and the sun s damaging ultraviolet rays. Formula is safe and effective on all fiberglass painted and gel coat surfaces of any color and can be used in direct sunlight. Formulated to be effective by hand or Dual Action Polisher.